Optimal Placement of FACTS for Congestion Management in Deregulated Power System with Water Wave Optimization (WWO) Algorithm

Abstract

During these days, due to increase in load demand, transmission lines are frequently operating vary nearer to or even ahead of their thermal limits. On other hand it was happened to observe the line outages frequently due to of increase of unplanned power exchanges in the interconnected power system because of completion among the utilities and because of direct contract among energy consumers and producers. If this unexpected exchange of power were not in control, few lines in the power system will be overloaded and create congestion. In deregulated power systems, the management of congestion is considered as one of the foremost issue to be addressed and has to resolve. To get over this congestion and in enhancing the performance of existing power system without building new transmission lines, FACTS device plays a crucial role. However, the type, rating and location of FACTS decide the extent to which the objectives like enhancement of system loadability, loss minimization and improvement in voltage stability is optimized effectively. This paper exhibits the application of water wave optimization technique to extract the optimal location of FACTS devices and analysis is considered for optimizing line loadings, load voltage and loss minimization in order to get maximum benefits out of its installation. The effect of incorporating TCSC,SVC and UPFC in minimizing the system losses and maximizing voltage stability and line loadings has been analyzed and its effectiveness is checked in IEEE 30 bus system. The Simulations results were compared with NSGA and particle swarm optimization to show up the effectiveness of FACTS in releasing the congestion.